package org.example

import org.apache.spark.SparkConf
import org.apache.spark.streaming.dstream.{DStream, ReceiverInputDStream}
import org.apache.spark.streaming.{Seconds, StreamingContext}

object SparkStreaming_1 {
  def main(args: Array[String]): Unit = {

    val sparkConf = new SparkConf().setMaster("local[2]").setAppName("NetworkWordCount")

//     5秒统计一次

     val ssc = new StreamingContext(sparkConf, Seconds(5))

//     数据处理

     val dStream: ReceiverInputDStream[String] =


     ssc.socketTextStream("192.168.220.1",9999) //
//    val dStream: ReceiverInputDStream[String] = ssc.socketTextStream("172.16.104.21", 9999)
//     词频统计

     val lines: DStream[String] = dStream.flatMap(_.split(" "))

     val wordDStream: DStream[(String,Int)] = lines.map((_,1))

     val result = wordDStream.reduceByKey(_+_)

//     数据保存

     result.print()

     ssc.start()

     ssc.awaitTermination()
  }
}
